where \(A_\mathrm {max}\)  is the amplitude of the maximum growth mode. In Eq. (REF ), \(\omega _{i,\mathrm {max}}\)  can be used to determine the classical stability for a given set of conditions as follows [1]}, [2]}, [3]}:
\(\omega _{i,max}<0:&\quad \text{ The system is stable}\\\omega _{i,max}=0:&\quad \text{ The system is neutrally stable}\\\omega _{i,max}>0:&\quad \text{ The system is unstable}\) 
